Manifold for internal-combustion engines.



. M. 3., RICE.

MANIFGLD FOR INTERNAL OOMBUSTION' ENGINES.

APPLICATION FILED MABJZB, 1910. 974,992.

Patented Nov. 8, 1910;

. INYENT R- VMEHHILL B. Rig-E.

internal combustion engine, and the main.

MERRILL B. RICE, DE LOS ANGELES.

CALIFORNIA.

MANIFOLD FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

' Patented Nov. 8, 1910.

Application-filed March 26,1910. Serial No. 551,786.

To all whom it may concern:

Be it known that/I, MERRILL -B. RICE; a

citizen ofthe United States, residing at Los Angeles, in the county ofLos Angeles and State'of Qalif rnia, have invented a new and usefulManiffild for Internal-Combustion Engines, of which the following is aspoolfication.

This invention relatesto means for connecting the carbureted mixturefrom the carburetor to the cylinder of a multi-cylinder object of theinvention is to provide means for this purpose which will distribute themixture uniformly or equally to the several cylinders as regardsquantity and quality of to the carburetor or other mixture hereinafter.

the mixture.

Another object of the invention s to pro.- vide a manifold of simple'constructlon for the purpos "stated.

f Othero jects of the invention will appear The invention is illustratedin the accompanying drawings, and referring thereto, Eigure l is a rearelevation of the manifold. Fig. 2 is a vertical section on the line 1-42 Fig. 1. Fig. 3 is a horizontal section on the line. m m, Fig. 2. k

The manifold preferably consists of a single integral cap and comprisesan inlet portion 1, a distributing portion 2 extending directly upwardfrom the inlet portion 1 and an elongated head 3 at the upper end ofsaid distributing portion. said head being provided with a plurality ofoutlets 4 for communication with the respective cylinders of the engine.

The inlet portion l may be inte ral in form an'd'm-ay be provided withaange 5 perforated as at G to enable it to be fastened pp y means. The.outlet gated head 3 are similarly provided with flanges 7 perforated at8 for attachment to the respective cylinders. The elongated 3 isprovided with a. downward extension or weld 9- having an elongated slot11 at its bottom communicating with the upper end of the distributingmeans 2. The end walls of. said distributing means diverge upwardly fromthe inlet portion 1 so as to extend directly tothe outer end. of theelongated head 3so that the upper end of said distributing means islongitudinally coextensive with said head, said elongated put uponsubstantially portions 4 on the elonrent of mixture from the head beingof suflicient length to include all of. the inlet openings at for therespective cylinders. The front and rear Walls 10, 10 of thedistributing means 2 converge, as shown in Fig. ,2 so that the actualarea or cross section of the distributing means is practically uniformthroughout and is substantial-lvequal to the area of the inlet portion 1and to the area of the outlet portion slot 11, said slot being of alength nearly equal to the length ofthe elongated head 3.

Themanifold is connected to the engine by means of connecting means 5and 7 in the operation of the engine, suction is'produced successivelyat the outlets 4,'cau'sing the mixture to be' drawn in through the inletportion 1 and" upwardly ing means 2 and slot 11 into theelongated head 8from which it passes to the particular outlet 4 which at the time is inooinmunica tion with a cylinder on a suction stroke. Owing to thetransverse constriction and longitudinal elongation'of the slot 11, themixture is drawn jthrough nearly the whole length of said slot on eachsuction stroke, irrespective of which outlet portion 4 is being drawnfrom, the mixture passing in a fanshaped current whose. longitudinalaxis ex tends approximately in a direct line'" from the inlet portion tothe particular outlet p0rtion 4 which is operativefor the time being.The several'outlet portions 4 are therefore the same footing as regardsamount and quality of the mixture passing from supply means, and it'istherefore .possible, by proper adjustment of the carburetor, to maintainpro or working conditio'ns in each of the cylindgrs of the'engine.

The depending extension 9 of the elongated'and enlarged head 3serves'not only to facilitate and equalize the passage of themixture-from the elongated slot to that one of the outlet portions 4which is in operation, but also serves to collect'any condensed gasoleneand return it to the slot 11 where it is brought into contact with theissuing curdistributing means and is thereby carried forward-and againvaporized, or gas'ified, thereby What I claim is 1. A. manifold comrising an inlet tion, an elongated head rality of outlets distributedalong its length. and having an elongated inlet slot, anda porthroughthe distribut-' Y maintaining the uniform quality of the mixture.

provided with a pludistiiibutin}; iioi ztion eit tending directlyupwznrd. from the inlet portion to said elont nted slot. 1

2. A manifold coin 'irising'an inlet portion, an elongated head providedWith a plurality of outlet portions distributed along its id] 1loiigitudint ljly li ngth and provided with an elongated slot, and :1vdistributing portion extending upwardly from the inlet portion to saidelongated slot, saiddistributing portion divergfipi've'rd so as to belongii'vith the elongated n and said distribut I a V i dly convergent ina beetles-sons to provide substan tially the some cross sectionthroughout its le n EillL v :5. 5X. manifold comprising an inletportion, an elongated head provided With a plumlity of outlet portionsdistributed along its li-uigtli, said elongated head having a (lepenlling GAiGDS-lOH formed with a longitudi- 'nnl slot tximmm ie'etin'givith the upper end In testimony whereof, I have hereunto set my hand atLos Angeles, California, this 18th day of March, 1910. e z y MERRILLB.-R ICE. In presence of' v ARTHUR P. KNIGHT, FRANK GRnIiAM.

